import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist

router.beforeEach(async (to, from, next) => {

  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      next({ path: '/' })
      NProgress.done()
    } else {
      const hasGetUserInfo = store.getters.name

      if (hasGetUserInfo) {

        const hasRoles = store.getters.roles
        if (to.name === 'Dashboard') {
          hasRoles.indexOf('admin') > -1 ? next() :  next('/work')
        }
        else if (to.meta.roles) {//判断权限
          for (let i = 0; i < to.meta.roles.length; i++) {
            if (hasRoles.indexOf(to.meta.roles[i]) > -1) {
              next()
              break
            } else if (i == to.meta.roles.length - 1) {
              next('/404')
            }
          }
        } else {
          next()
        }

        NProgress.done()
      } else {
        try {
          await store.dispatch('user/getInfo')
          const hasRoles = store.getters.roles
          
          if (to.name === 'Dashboard') {
            hasRoles.indexOf('school_affairs_platform_admin') > -1 ? next() : hasRoles.indexOf('common_user') > -1 ? next('/work') : next('/work')
          }
          else if (to.meta.roles) {//判断权限
            for (let i = 0; i < to.meta.roles.length; i++) {
              if (hasRoles.indexOf(to.meta.roles[i]) > -1) {
                next()
                break
              } else if (i == to.meta.roles.length - 1) {
                next('/404')
              }
            }
          } else {
            next()
          }
          NProgress.done()

        } catch (error) {
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }

      }
    }

  } else {
    /* has no token*/

    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }

})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
